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def definition def or abbrev

winner

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formal statement (Lean)

 121def winner (b₀ b₁ : ℝ) : Fin 2 :=

proof body

Definition body.

 122  if b₀ ≥ b₁ then 0 else 1
 123
 124/-- The payment by agent `0` under bid pair `(b₀, b₁)`. Equals `b₁`
 125if 0 wins, else 0. -/

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